CVE-2026-4430 MEDIUM

CVE-2026-4430: Heap Buffer Overflow in AgileEngine

Vendor The Document Foundation
Product LibreOffice
Weakness CWE-787
Published May 7, 2026
Last update May 7, 2026
View on NVD All CVEs

CVSS base score

5.4/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction —
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

Out-of-bounds write vulnerability in The Document Foundation LibreOffice via crafted OOXML documents with mismatched encryption salt parameters. This issue affects LibreOffice: from 26.2 before 26.2.3, from 25.8 before 25.8.7.

Key dates

02Disclosure timeline

May 7, 2026 CVE published
May 7, 2026 Record updated